/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchy.h
Returns a control's preferred rotator (local transform rotation)
Returns the current preferred rotator
FRotator GetControlPreferredRotator ( const [FRigControlElement](API\Plugins\ControlRig\Rigs\FRigControlElement) * InControlElement, bool bInitial ) const